Linge



(No Model.) 2 Sheets-Sheet 1.

R. S., E.,& R. COLLINGE.

SHEDDING MECHANISM FOR LOOMS.

No. 286,783. Patented Oct. 16, 1883 WITNESSES INVENTORS (No Model.) 2Sheets sheet 2.

R. s., 3., 85' R. COLLINGE. SHEDDING MECHANISM FOR LO0M$- No. 286,783.Patented Oct. 16, 1883.

WITNESSES INVENTORS.

g ggm QWMMM I i @ZZZ? UNITED STATES PATENT OFFICE.

RICHARD SCOTT OOLLINGE, EDWARD COLLIN GE, AND ROBERT OOLLINGE,

'' OF OLDHAM, COUNTY OF LANCASTER, ENGLAND.

- I SHEDDING MECHANISM FOR LO'OMS.

SPECIFICATION forming part of Letters Patent No. 286,783, dated October16, 1883.

Application filed July15, 1882. (No model.)

To aZZ whom, it ntay concern:

catch-levers are employed in connection with alternately rising andfalling knives, such catch-levers being drawn, when required, intoposition to be acted upon by such knives by the action of apattern-chain or similar mechanism, the double catch-levers beingcarried by or otherwise connected with the harnesslevers which work thehealds, so as to shed the warp-threads in the manner required for eachpick of the weft.

The object of the invention is to construct a more. simple and efficientapparatus than that hitherto employed, and which can be readily adaptedto alter the position of the healds any required number of times, inorder to weave any desired number of picks to the round.

Such being the nature and object of our said invention, we will nowproceed to describe in detail the manner in which the same is to be ormay be performed or carried into practical effect; and in order that thesame may be clearly understood we have annexed hereunto two sheets ofdrawings illustrative thereof, and have marked the same with figures andletters of reference corresponding with those in the followingexplanation thereof.

Figure 1 represents in partly sectional eletion a part of the end frameof a loom with our invention shown as applied thereto; and Fig. 2 is aview of the reverse side of the apparatus, or that next to theloom-frame.

On a frame, a a, fixed to one side of the loom we mount abarrel,(consisting of a shaft, 1; b, having a stud-wheel, c c, at each end,) soas to be capable of revolving in suitable bearings, said barrel beingdriven by means of a pinion, d d, on the crankshaft e e of the loom, ingear with a toothed wheel, f f, on the barrel-shaft b, so as to move oneface of the barits harness-lever 0 0.

rel for every pick of the loom. On this barrel works an endless chain, 99, consisting of rods or lags provided with bowls, pegs, or otherprojections, somewhat similar to those of a Dobby, the said chain beingheld in place by passing over a freely-revolving barrel, h 71, mountedabove. Beneath the lower barrel we mount a series of long slight bars,'i t, (one for each heald,) such bars being pivoted at one end to doublecatch-levers 7c is, and held up in an almost horizontal position at theother end by a series of weighted levers, ll, mounted loosely upon arod, Z, each bar passing through a slot in its respective weightedlever. These weighted levers Z Z hold the horizontal bars 1' z" in sucha position that the bowls, pegs, or projections on the pat tern-chain gg come into contact with them as the pattern-barrel revolves, and, byovercom-. ing the action of the weighted levers Z Z, cause the said barsz i to be depressed. On the under side of each of these bars is. a catchor tooth, m, which, when the bar is depressed by the pattern-chain, iscaught by'a knife or rail, n, (which is constantly working to and fro,)and is pulled thereby in the direction of the arrow, Fig. 1. Each ofthese bars 73 i, as before mentioned, is connected to the upper arm ofone of aseries of double catch-levers, k k, pivoted at the center, andeach carried at one end of a long harness-lever, o 0, the other end ofwhich is connected, in the usual manner, to one of the healds of theloom. The lower arm of each double catch-lever k k is connected by aspring, 1) p, to This spring draws the lower arm of the said catch-leverinward into a position to be engaged by the under side of a horizontalbar or knife, q q, stretching across the frame and constantly moving upand down. As this knife q q descends it pulls down all thosecatch-levers which are in a position to be engaged by it, and thuscauses their rehorizontal bar 73 z the latter is pressed downward, 'soas to bring its tooth or projection m into position to be caught by thebar a as it oscillates, and this bar pulls the horizontal rod Min thedirection of the arrow and disen- IOO raised with its respective heald.Thus it will be seen that each double catch-lever is moved at every pickof the loom either up or down, carrying with it the end of itsharness-lever, and thus actuating the heald connected with said lever.On each harness-lever 0 0, near to the double catch-lever, are twoprojections, r r, the length of which is such that as one edge of eachof the knives q q rises or falls close against one of these projectionsthere is just sufficient room for the other edge to be caught by one endof the catch-levers '70 k, and the knife or bar q or q is thus heldalmost in 'a positive grip between the catch k k and the projection i,(see Fig. 1,) which insures very steady and even working of theapparatus.

The up-and-down motion of the knives q and q is effected as follows:Each knife is carried by an arm, 8 s, at each end, fixed on a shaftwhich is connected by levers and links to a crankpin, u, fixed in thespur-pinion d, before mentioned. On the end of the shaft carrying theupper knife, q, is an arm, t, connected by the rod t to the crank-pin aon the pinion (l, and on the same shaft is an arm, 7?, Fig. 2, connectedby a link, It, to an arm, f, on the shaft carrying the lower knife, q,so that the two shafts are operated simultaneously from the same source.As this pinion d revolves with the crank-shaft it causes the knives qand q to alternately approach to and recede from each other at eachrevolution. This alternate approaching and receding of the knives may,however,be obtained in any other convenient manner.

The oscillation of the knife or rail 12, which acts on the horizontalbars 13 t, is caused bythe action of cams or tappets v, working in theopen slots of the levers w, to which the ends of the knife or rail n areattached, the cams being keyed or otherwise fixed on a shaft driven by aspur-pinion, m, in gear'with the pattern-barrel wheel f f. Thespur-pinion so (see detached views, Fig. 3) is mounted loosely on itsshaft, and is provided with a pin or projection, a2, working in a slotor notch, y, on a face-plate,

z, keyed or otherwise fixed 011 the. shaft and revolving with thelatter, so that when it is required to reverse the loom the pin orprojection 00 moves from one end of the slot y to the other withoutimparting any motion to the pinion 2, thus allowing the crank-shaft tomake about a quarter or one-third of a revolution backward before actingon the cam 11, and thus the rods i i are not pulled back until the loomhas arrived at the required position. The reverse action takes placewhen the loom is again moved forward.

1 1 is a band or guard to keep the catchlevers k 7c in place at thecenter, and 2 2 is a roller mounted on arms pivoted to the frame, toprevent the upper catches from coming away from the knife q when beingraised up, 3 3 being spiral springs, to give a certain amount ofelasticity to the roller 2.

Te claim 1. The combination of knivesq q and means for operatingthe'same, double catch-levers k, rods 2', and devices, substantially asset forth, for reciprocating the rods as required, with a pattern-chain,driving mechanism, and harness-levers 0, having projections 1', betweenwhich and the catch-levers 7c the knives are adapted to be caught andheld, substantially as set forth.

2. The combination of harness-levers 0 0, catch -levers k, carriedthereby, and springs 19, with knives q q, and means, substantially asset forth, for operating the knives and controlling their engagementwith the catchlevers, arms carrying a roller, 2, and springs 3, as andfor the purpose described.

3. The combination of harness-levers, catchlevers k, and knives q q, anddevices, substantially as described, for operating the same, with rods2, weighted levers Z, knife n, reciprocating mechanism for said knife,and pattern-chain and driving mechanism'for acting on said rods, allsubstantially as set forth.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

RICHARD SCOTT GOLLINGE. EDWVARD OOLLINGE. ROBERT OOLLINGE.

Vitnesses:

GEORGE DAVIES, CHARLES DAVIES.-

